Improved bung for oil-casks



A. WALTON. STOPPER FUR OIL BARRELS.

No. 36,490; Patentd Sept. 16, 1862.

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do hereby declare the following to be a full,

. per than an ordinary bung, and one which .side of the cask; Fig. 3, a sectional view of a perienced in keeping the bungs of coal-oil with theview of remedying these difiiculties.

three projections, e, the edges of which form.

UNITED STATES PATENT O FICE.

ALLEN WALTON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED BUNG FOR OlL-CAS KS.

To all whom it may concern.-

Be it known that I, ALLEN WALro' N, of Philadelphia, Pennsylvania, have invented a Metallic Stopper for Coal-Oil Casks; and I clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists of a screw-tube and screw-plug with an intervening washer,-the, whole being constructed and applied to the; stave of an oil-cask in the manner described if hereinafter, so as to. form a more secure stop can be more readily removed and replaced.

In order to enable others to make my invention, I will now proceed to describe its constrnction and operation.

On reference to the accompanying drawings, which form a part of this specification, Figure 1 is a sectional view of my improved metallic stopper for oil-casks; Fig. 2, a face view of the stopper as it appears on the inmodified form of the stop face viewof Fig. 1.

It is well known that great difiiculty is exper, and Fig. 4 a

casks tight in their places, the agitation of the casks during transportation tending to loosen the bungs, owing to the latter as well as the holes in which they fit becoming impregnated with oil.

In casks for conveyingcoai-oil between distant localities it is usual to glue the bungs in their places to prevent them from being shaken loose, so that the withdrawal .of the bangs is a matter of diflicnlty, and can rarely be effected without mntilating the cask. My improved metallic stopper has been designed On reference to Figs. '1 and 2, A represents a portion of the'stave of. the cask for containing coal-'oiL-and into this stave is bored :1 hole of sufficient diameter to freely admit the screw-tube B, the flange b of which is let into a recess formed on the outside ofthe barrel, thetube being firmly secured to the stave by the nut a.

D is a metal plug, the head (I of which has six, eight, or any other convenient number of sides, and on the body of the plug -are inclined planes, the latter being arranged to a projectionsf on' the inside of the from the projections f, and the plug may be -withdrawn when it has been turned to a given positionthat is, when the spaces between the projections e coincide with the projections f.

In the modification illustrated in Figs. 3 and 4, the plug D, instead of being provided with inclined projections or portions of a screw, has the ordinary screw-threads adapted to similar threads in the screw-tube. With this exception, the stopper is precisely similar to that above described.

In order to add security to the plug, after it has been screwed tight, a key, n, may be driven between a projection, q, on the flange b of the screw-tube and one of the sides of the flanged of the plug, as best observed in Fig. 4, thereby preventing the'latter from turning.

;It will be seen without further description that, while my metallic stopper protrudes from the cask to no greater extent than an ordinary wooden bung, it is much more secure thanthe latter, and can be withdrawn and replaced with facility and without mutilating the cask.

I claim as my invention and desire to secure by Letters Patent'- In combination with the stave of a coaloil cask, the screw-tube B, with its-flange b, the screw-plug D and its head d, and the intervening washer, m, the whole being con structed and applied to the stave as set forth, for the purpose specified.

In testimony whereof I have signed my nameto this specification in the presence of two subscribing witnesses. v

ALLEN WALTON.

Witnesses:

HENRY HOWSON, J OHN WHITE. 

